Still-cleaning device



Aug.- 10 1926. 1,595,666

W. KNAPP STILL CLEANING DEVICE Original Filed Oct. 7. 1922 3 Sheets-Sheet 1 Aug. 10, 1926. 1,595,666

, w. KNAPP STILL CLEANING DEVICE Original Filed 001;. 7, 1922- S'Sheets-Sheet 2 Aug. 10, 1926. 1,595,666

W. KNAPP STILL CLEANING DEVICE Original Filed Oct. 7.. 192 5 Sheets-Sheet 5 attorney;

Patented "Au 10, 1926.

' WILLIAM man, or cmnurn, mans.

PATENT OFFICE.

STILL-CLEANING nnvxon.

. Application filed October '7, 1922, Serial 176.5%,004. Renewed July 8, 1928.

This inventionrelates to a vacuum oil still, ancl'the object of the invention is the provisiongof asimple and efficient brushing apparatus-for brushing the interior of the still.

Anotherv object of the invention is the construction of simple and efiicient drip plates to be used in a separator power tank.

A further object. of the invention is an improvement ofytheconstruction of a vacuum oil still, involving a still with a dome, a

Y vacuum pump connected to said dome, to-

brushing device.

Figure-8 1s asect'lonal view, taken on line ether: with it -separator power tank and conenser coils connected to the vacuum pump and still.

the arrows.

Figure 4 is a sectional view, taken on line 44,.Fig. 1, and looking in the direction of the arrows.

- Figure- 5 is a sectional view, taken on line 5-5, Fig. 1, and looking in the direction of the arrows.

Figure 6 is :a plan view of a blank from which a finished drip plate is formed.

Figure 7 ise perspective view of the 8--8, Fig. 7, and looking'in the direction of the arrows.

Referring to the drawings by numerals, 1 designates the furnace of theapparatus, 2 is the'still and 3 is the dome of said still. An engine 4 is positioned contiguous to the furnace 1.

A platform 5 supports the vacuum pump 6, and supported upon the platform 5 is the separator power tank 7. A water box 8 is formed upon the platform 5 and, within said box are condenser coils 9. A vapor line 10 connects the vacuum pump to the top of dome 3. A pipe 11 connects the tank 7 to the drip pump 6. A light vapor line 12 connects the condenser coils with the top of tank 7. A back trap l ne 13 is connected at one end to the condenser coils, and its other end enters the still 2, opening near the bottom portion 'of the still.

A thermometer 14 is placed on the still 2. A brushing device 15 is positioned in still 2 and comprises a horizontal shaft 16, a

handle 17, rods 18 and brushes 19, Fig. 7. On each brush 19 are formed integral, heads 20 into which-the lower ends of the rods are threaded; the upper ends of the rods are threaded into depending extensions 21, formed upon the shaft 16. From an inspection of Figure 8 it will be seen that the up per and lower ends of the rods 18 are oppo sitely threaded and that turning of the rods will therefore adjust the brushes radially within the still 2, so that the bristles of the brushes can properly engage the inner face of the tank, at all times, for efliciently bi ushing the same.

A connecting shaft 22 connects the engine 4 with the handle 17, so that when the engine is running, the shaft 16 will be operated for causing the brushes to brush the still.

The drip plates 23 are each formed from a single dpiece of metal and provided with aperture ears 24, which are turned down so that they will engage the inner face of tank 7. Suitable fastening means extend through the ears 24 and tank 7, fastening plates in a staggered or alternating, incline position, as clearly shown in Fig. 1.

It is to be noted that my brushing device will brush or scrape the bottom of the still, keeping all sediment from settling, and the brushing device will also agitate the contents of the still. I preferably construct the brushes of steel, both the back of the brush es as well as the bristles.

Any standard form of a vacuum pump 6 may be used but I claim it to be novel to connect the vacuum pump through the va or line 10 direct to the top of the dome 3. 'I he construction of my drip plates 23, in alow vacuum still, will increase the output of gasoline from 10% to 20% by returning the heavy vapor through the valve 25 and line 13 to the still 2 where it has an opportunity of further cracking. Without m plates 23, the heavy vapors will be carrie 'over with the light through line 12. In the running of heavy oils the valve 25 will be closed an the heavy vapors will run throughvalve 26,

i the pump. a

Vhile I have described the preferred embodiment of my invention, and have illus- I trated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates, during the extensive manufacture of the same and I, therefore, reservethe right to make such alterations or changes as shall fairly fall within the scope of the appended claim.

What I claim is:

In an apparatus of the class described, a cylindrica still having heads provided with bearings, a rotary shaft extending axiallyof said still and journalled in the hearings of said heads and having one endportion extending externally of the still, internally threaded socket arms extending radially from said shaft, cleaning members disposed within said still and extending longitudinally of the still and shaft and each having a back provided with internally threaded sockets aligned with socket arms of the shaft, and connectingrods extending radially of the shaft and having their end ortions threaded and screwed into the sec ets of the cleaners and socket arms of the shaft whereby upon rotation of the shaft the cleaners will he swun about the still in cleaning engagement with the walls thereof.

In. testimony whereof I hereunto'afix my signature. Y

'WILLIAM KNAPP. 

